ABB RELION RET670, Commissioning Manual, Page: 264 / 328

11.10.3.9 Completing the test
Continue to test another function or end the test by changing the TESTMODE setting to
Disabled . Restore connections and settings to their original values, if they were changed
for testing purposes.
11.10.4 Single command, 16 signals SINGLECMD
For the single command function block, it is necessary to configure the output signal to
corresponding binary output of the IED. The operation of the single command function
(SINGLECMD) is then checked from the local HMI by applying the commands with
Mode = Off , Steady or Pulse , and by observing the logic statuses of the corresponding
binary output. Command control functions included in the operation of different built-in
functions must be tested at the same time as their corresponding functions.
11.10.5 Interlocking
Prepare the IED for verification of settings outlined in Section "Preparing the IED to
verify settings" .
Values of the logical signals are available on the local HMI under Main menu/Tests/
Function status/Control/Apparatus control/Interlocking . The Signal Monitoring in
PCM600 shows the same signals that are available on the local HMI.
The interlocking function consists of a bay-level part and a station-level part. The
interlocking is delivery specific and is realized by bay-to-bay communication over the
station bus. For that reason, test the function in a system, that is, either in a complete
delivery system as an acceptance test (FAT/SAT) or as parts of that system.
11.11 Scheme communication
11.11.1 Scheme communication logic for distance or overcurrent
protection ZCPSCH (85)
Prepare the IED for verification of settings outlined in Section "Preparing the IED to
verify settings" .
Check the scheme logic during the secondary injection test of the impedance or
overcurrent protection functions.
Section 11
1MRK 504 165-UUS -
Testing functionality by secondary injection
258 Transformer protection RET670 2.2 ANSI
Commissioning manual